Chusetts



(No Model.)

4 Sheets-Sheet 1.

G. EMMETT & W. E'. JAQUES.

AUTOMATIC GARVING MAGHINE.

- Patenteg leb. 18, 1896.

(No Model.) 4 Sheets-Sheet 3. G. EMMETT & W. E. JAQUES.

AUTOMATIC GARVING MACHINE.

No. 554,917. I Patented Feb. 18, 1896.

T I w ykiiizz w yw'w fl m Z 7 No Model.)

4 Sheets-Sheet 4. G. EMMETT & W, E. JAQUES.

AUTOMATIC GARVING MACHINE. No. 554,917. Patented Feb. 18, 1896.

WI T A] E5555 WZZW'M fla UNTTED STATES PATENT @EFTCE.

GEORGE.EMMETT AND WVILLIAM E. JAQUES, OF ATTLEBOROUGH, MASSA- CHUSETTS.

AUTOMATIC CARVlNG=MACHiNE.

SPECIFICATION forming part of LettersPatent N0. 554,917, dated February18, 1896.

Application filedAugust 6, 1895.

To all whom it may concern.-

Be it known that we, GEORGE EMMETT and \VILLIAM E. J AQUES, ofAttleborough, in the county of Bristol and State of Massachusetts, haveinvented a new and useful Improvement in Automatic Carving-Machines, ofwhich the followin g, taken in connection with the accompanyingdrawings, is a specification.

Our invention relates to that class of machines that have some of thecharacteristics of both molding-machines and turning-lathes, the objectbeing to construct a machine that shall be to a large extent automaticand adapted to form by the aid of simple models or guiding-pieces verycomplicated and highly-ornamental work. This objectwe attain by themechanism shown in the accompanying drawings, in which Figure 1 is aside elevation of our machine. Fig. 1 is a view showing parts in endelevation. Fig. 2 is a plan of the entire machine. Fig. 3 is an endelevation of the machine. Fig. 4 is a view enlarged, partly in endelevation and partly in vertical section, showing details. Fig. 5 showsin side elevation the same parts that are shown in Fig. 4. Fig. 6 is asection taken on line 00 00 of Figs. 4 and 5. Figs. 7 and 8 show samplesof the Work done by our machine; Fig. 9 a detail of cutter-wheel andgage.

In the drawings, A represents the bed of the machine, and A A ways uponwhich 1noving bed or carriage H slides. The carriage H has two standardsH and H, (see Figs. 1 and 2,) which may be called respectively the headand tail stocks. The head-stock H is provided with housings, one uponeach side, adapted to act as a bearing for one end of the model E. beconnected by any suitable means to the Wheels E E, so that the saidwheels will be forced to rotate as the model rotates. The opposite endof the models E E are journaled in the bearings made in the tail-stock Hand are free to turn in them.

W V represent the pieces upon which the ornamental work is to be doneand are attached at one end to the mandrel WV by the usual cats-pawdevice, the said mandrel being driven by the gear-wheel W, which engageswith the gear-wheel E on the end of the The model-pieces E E may SerialNo. 558,382. (No model.)

model E. The rear ends of the pieces are held by centers W in thetail-stock H.

It willbe observed that in this machine the parts are practicallyduplicated, there being two models and two pieces being ornamented; butit is not necessary that the models be alike, although the Work is goingon simultaneously.

In working the model E is forced to rotate, as will be explainedhereinafter, and in rotating will cause the gear-wheel E to rotate,which in turn will, acting through the wheel TV and cats-paw, cause thework-piece IV to rotate. If the two gears E and IV are of the same sizethen the work will rotate with the same rapidity as the model E. Bymakin g the gear-wheels E and NV of different sizes any desired relativerapidity of rotation between the model and the worked piece may bemaintained by combinations of gears such as are used in the ordinaryscrew-cutting lathe, and an infinite variety of relative motions may beattained, so that a very great variety of kinds of ornamentations may bemade even from the same model.

The carriage H (see Fig. 1) is made to slide back and forth on the waysA A by the pit man H which is adjustably attached to it by thescrew-nuts H H The crank end of the pitman is connected by an adjustablewristpin H to the slotted cross-arm H connected to the gear-wheel H onthe shaft H said gear-wheel being driven by the gear-wheel H on theshaft H. The shaft H has upon it fast and loose pulleys H H, throughwhich motion is imparted to this part of the machine by a suitable belt.By moving the wristpin H in the slot in the cross-bar H the distancethat the carriage H will move can be regulated. By adjusting the nuts HH on the pitman H the limiting-points of the backand-forth movementofthe carriage 11 may be determined.

WVe will now describe the means used for giving a rotary motion to themodels E.

A strong bracket-piece E is attached to the bed A of the machine. (SeeFig. 1.) To this bracket-piece E the parts that give motion to the modelE are connected, and are fully illustrated in Figs. 4:, 5, and 6.

E is a ratchet-wheel connected to a hub E the said hub E being hollowand adapted to receive the model E. The said model is made with a spiralgroove e, (see Fig. 1,) in which a pin E", Fig. 4, traverses. As theratchetwheel E and its hub 11 are mounted on the fixed bracket-pieee Eand are frictionally held from rotating, it is evident that as thecarriage ll carries the model E forth and back through the hub E thesaid model must rotate from the action of the pin E in the spiral slot6.

To hold the ratchet-wheel E from freely turning in either direction weplace between it and the walls of the case E in which it is placed apacking of rubber or some other suitable material which exerts africtional stress upon it, and thus prevents it from turning in eitherdirection unless acted upon by some positi ve mechanismlike the slidingpawl E for instance. To regulate the amount of friction to be imposed onthe ratchet-wheel E one side, E, of the casin E is adj ustably attachedby screws 3 s, so that it may be forced firmly against the packing E andthus any desired amount of friction may be brought to bear on to theratchet-wheel E", which is between the packings E and E".

The sliding pawl E is made to move in an upward direction at the end ofeach movement of the carriage 11, so as to rotate the ratchet-wheel onenotch. This movement of the sliding pawl is effected by the followingdescribed mechanism The pawl E is pivoted to an upright E that slides inthe bracket E by the pivot E and is also held by the spiral spring E Theupright E has a pin E projecting from it, which is adapted to engagewith the double-wedge cam-piece E The cam-piece has an opening or slot(indicated by dotted lines e c c", Fig. 5) and is made to slide so as tocause the wedge part c e to act on the pin E, and through it cause theupright E to move upward and force the pawl E against a notch of theratchet-wheel E", forcing it to rotate to the extent of one notch.Motion is given to the cam-piece E by the pins 7L 7L" on the cross bars11 ll on the carriage II. (See Figs. 1 and 2.) These bars II and II"being attached to the carriage ll, move with it, and at the end of eachstroke of the said carriage it alternately comes in contact with an endof the cam-piece 1P causing it to slide and act upon the pin E, thusforcing the upright E and its pawl E to move upward.

The reason for causing the model or pattern to make a part rotation ateach movement of the carriage is that by this arrangement but a singlegroove may be made in the pattern; but this single groove in the patternis reproduced many times in the work-piece, the number of grooves in thework-piece being determined by the number of teeth on the ratchet-wheelE \Ve will now describe the parts connected with the molding or cuttingmechanism.

B represents standards attached to the sides of the fixed bed A of themachine,- and are connected at their tops by a cross-piece ll, whichextends across the top of the machine and forms a base for theattachment of the parts that serve to hold the cutting mechanism, saidcutting mechanism being in duplicate.

3 B are standards attached to the crosspiece B and have extended fromthem arms 13", which in turn support quill-pieces 13 which form a guideand holder for the vertically-adjustable cutter-hangers D. A cut ter Dis journaled in the lower end of each of the cutter-hangers and drivenby belt C", which passes under the guiding-pulleys C" 0 onto the wheelD, which is attached to the same shaft that the cutter D is. The upperend of the cutter-hanger D is provided with a pin 1) upon which the endof a spring 1) rests. The action of the spring D is to force the cutterdown onto the work-piece XV? The cutter-hanger also has an arm Dextending horizontally as shown, its end being adapted to move freely upand down in slot 13", made in the upper end of the standard B (See Figs.2, 3, and 1%) The function of the arm D is to prevent the cutter-hangerfrom turning and allowing the cutter-wheel from setting out of place.The lower part, (1, of the cutter-hanger may be turned on its verticalaxis so as to adjust the plane of the cutter to any position required tomeet the line of the desired cut or ornamentation. The depth of cut ofthe cutter-wheel D is regulated by the adjustable gage D (See Figs. 1.and 9.)

For the purpose of raising the cutters out of contact with the piece \V(that is to be ornamented) when the cutters reach the end of it, we haveadj ustablc cam-pieces 11 I1 (see Figs. 1. and 2,) which, acting on thearms D that extend from the cutter-hangers, lift the said cutter-hangersand the cutters out of contact with the piece so that no more cuttingisdone. In lifting the cutter-hangers out of the working position, thearms I) l) are raised so high the spring-latches b b are thrown. by thesprings b b inward, so as to cause the said arms D D to be caught on theshoulders U l) and held up until the work-piece V has been carried backto the starting-point; then the horizontal cam-pieces 11 H Fig. 2, willcome in contact with the levers b b and throw their upper ends away fromthe arms D D, and thus allow the cutter-hangers to drop until theirPiOjOCtlOllS l.) D fall on to the fiat top of the campieces ll 21 11Now, as the carriage carries the piece W the projections D of thecutter-hangers slide off from the flat top of the cam-pieces 11 11 andthe inclines of the said cam-pieces will allow the cutter-hangers todrop so that the cutters assume a working position, and the work will goon until the whole length of the work-piece has been passed over; thenthe cam-piece Il 11 will again lift the cutters out of the workingposition and the above described operations the hub E of theratchet-wheel E and the parts which it operates, which we will nowdescribe: D D is a lever pivoted at D and having a shoulder D at itsupper end, said shoulder being adapted to catch'the pin D that projectsfrom the upper end of the cutter-hanger. When the carriage makes itslast movement to the fixed cams H that is,

after it (the carriage) has moved back and' forth a sufficient number oftimes to have caused the ratchet-wheel E to make a complete rotation,thereby causing the model to make a complete rotationthen the boss Ewill come in contact with the lower end of the lever D D and cause theshoulder D to pass under the pin D and thus prevent the cutter-hangerfrom again descending to allow the cutter to work, it being understoodthat the cam-piece H lifts the cutter-hanger sufficiently high to admitof the shoulder D to slip under it. I

WVhen it is desired to have the cutters work while the work-pieces W aremoving in either direction, the spring-latches b b, Fig. 3, may beomitted or thrown out of working position. When the machine is thusarranged, the fixed cam-pieces H H and 1-1 H may be made all alike andsimply act to lift the cutter up as they pass off from the end of thework at the end of the stroke of the carriage, then (as the work startsback) to drop the cutters into working position.

The work-pieces Vi shown in the machine are simple cylinders; but anyforms, however irregular, as shown in Figs. 7 and 8, may be worked. Thecross-section may be circular or octagonal oval or fluted. The gage DFig. 9, may be of the shape shown, or it may be modified to suit thework to be done. It is equally obvious that the shape of the cutters maybe changed to suit the work to be done.

The side standards 13 B, (see Fig. 3,) to

which the cross-bar B is attached, which in turn supports the cuttingmechanism, are made so as to be adjustable as to height, so that thecutters and their connected parts may be raised and lowered.

The standards 7L3 7L2, attached to the head and tail stocks H H are alsoadjustable as to height, so that the cam-pieces H H and H 11* and theirconnected parts may be raised or lowered to correspond with the positionof the cutters.

For notification of the workman that the machine has accomplished itswork we have an electric bell M, Fig. 1. This bell is operated by abattery M The circuit passes from the battery through the wire M to theframe of the machine and through the frame to the lever D D (see Figs. 1and 1 said lever D D acting as a circuit-closer by coming in contactwith the spring M when acted upon by the cam E (the function of whichhas been described,) the circuit being from the spring M through theboss M which is insulated from the frame of the machine, through wire 1V'to bell M and thence through wire M back to battery.

The spring-contact M is so located that when the lever D is forced overby the cam E (to stop the working of the cutters) an electric contact ismade and the bell is sounded.

We claim 1. In an automatic carvingmachine the combination of a slidingcarriage and means for operating the same, a head and tail stock mountedupon said carriage, adapted to hold a rotating model, and a work-piecemechanically connected to said model whereby the two rotate in a fixedrelation to each other; a hollow hub adjustably held in a stationarybracket-piece, said hub having a pin E adapted to engage with a groovemade in the said model and thus control its rotation during the movementof the carriage, substantially as and for the purpose set forth.

2. In an automatic carving-machine the combination of a slidingcarriage, a stationary bracket having mounted upon it a hollow hubhaving a pin E as described, a ratchetwheel attached to said hollow hub,and mechanism by which said ratchet-wheel and hub are made to make apart rotation at each back-and-forth motion of the said carriage,substantially as and for the purpose set forth.

3. In an automatic carving-machine the combination of a ratchet-wheelmounted in a stationary bracket and having a hollow hub, said hub havinga pin engaging with a groove in a model as described, friction-packingsE E adapted to bear upon the ratchet-wheel with an adjustable pressure,and means for regulating the said pressure, substantially as and for thepurpose set forth.

4:. In an automatic carving-machine the combination of the ratchetwheel, E the sliding pawl, E mounted in the stationary bracket, E andthe double-wedge cam-piece E with the cross-bars H H of the slidingcarriage H substantially as and for the purpose set forth.

5. In an automatic carving-machine, the combination of a cutter-wheel,an adjustable cutter-wheel hanger mounted in a stationary frame andadapted to slide up and down; an arm D extending from said hanger andadapted to engage with a moving cam-piece I-I attached to the slidingcarriage H and the said moving cam-piece, substantially as and for thepurpose set forth.

6. In an automatic carving-machine, the combination of a cutter-wheel,acutter-hanger having an arm D and a spring-latchb' adapted to engagewith the said arm; with the moving cam-piece H mounted upon the slidingtact-spring M, an electric bell M and an energized electric circuit,substantially as and for the purpose set forth.

In testimony whereof we have signed our names to this specification, inthe presence of two subscribing witnesses, on this 0th day of July, A.l). 1895.

GEORGE EMMJTT. \NILLIAM E. JAQUES.

Witnesses:

FRANK G. PARKER, WILLIAM II. PARRY.

